Mammoth Energy Services, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Basis of Presentation and Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Intangible Assets and Goodwill - Narrative (Details)

v3.19.2

Intangible Assets and Goodwill - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 284	$ 2,382	$ 568	$ 4,790
Goodwill	$ 101,245		$ 101,245		$ 101,245	$ 99,811
Goodwill impairment					3,203
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life (in years)			6 years 5 months 30 days
Trade names
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life (in years)			8 years 7 months
Cementing
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment					3,200
Cementing \| Customer relationships
Finite-Lived Intangible Assets [Line Items]
Impairment of finite lived intangible assets					1,000
Cementing \| Trade names
Finite-Lived Intangible Assets [Line Items]
Impairment of finite lived intangible assets					$ 200
Minimum \| Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life (in years)			6 years
Minimum \| Trade names
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life (in years)			10 years
Maximum \| Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life (in years)			10 years
Maximum \| Trade names
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life (in years)			20 years

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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